Is this enough PSU

Intel Core i5 Processor i5-3570K 3.4GHz 6MB QUAD CORE

INTEL STANDARD PROCESSOR COOLING FAN

-ZEROtherm Advanced ZT100 Thermal Grease
-PROFESSIONAL WIRING W/ROUND CABLES ON MY PC
-Asus P8B75-V LGA1155/ Intel B75/ Quad CrossFireX/ SATA3&USB3.0/ A&GbE/ ATX Motherboard
-8GB (1 x 8GB) 240-Pin DDR3 1600MHz (PC3 12800) Dual Channel
-1x - COOLMAX MEMORY HEAT SPREADERS
-SEAGATE / WD 1TB 7200 RPM 32MB CACHE SATA 6.0Gb/s
-ALLPCZONE Dual Fan Cooler for Hard Disk (RECOMMENDED)
-22X DVD-RW DUAL LAYER
-nVidia GeForce GTX660 2GB DDR5 2-DVI/HDMI SLI PCI-EXP Video Card
-REALTEK 8-CHANNEL DIGITAL SOUND ONBOARD
-REALTEK 10/100/1000 Gigabit Network Card (onboard)
-Wireless-N Internal PCI AdapterZALMAN Z11 Plus Black Steel / Plastic ATX Mid Tower Computer Case
-1x ROSEWILL / ANTEC CASE FAN
-VANTEC DELUXE CASE COOLING SYSTEM
ANTEC 650W HIGH PERFORMANCE SLI/CROSSFIRE POWER SUPPLY

i also want to know if the PSU is enough to run this